Amazon Standard Identification Number

"ASIN" redirects here. For other uses, see ASIN (disambiguation).

An Amazon Standard Identification Number (ASIN) is a 10-character alphanumeric unique identifier assigned by Amazon.com and its partners for product identification within the Amazon organization.

Usage and structure

Each product sold on Amazon.com is given a unique ASIN. For books with a 10-digit International Standard Book Number (ISBN), the ASIN and the ISBN are the same. The Kindle edition of a book will not use its ISBN as the ASIN, although the electronic version of a book may have its own ISBN. The ASIN forms part of the URL of a product detail page on Amazon's website.

If one knows the ASIN of any product on Amazon, one can access its Amazon page easily buy appending it (adding it to the very end) of the following URL:

http://amzn.com/[ASIN]

Note that the above is not a valid URL; a correct ASIN must be inserted at the location of the "[ASIN]" placeholder.